I bought an engine for my Nova and and the casting number on the block is 3877178, can I determine if is a 230 or 250 without tearing it down? It does not have the boss for the Z-Bar ball and the compression 126 +/- 3 lbs per cyl. Is there a way to read the date stamps cast towards the rear of the black casting number?

Last edited by jalopy45; 06/22/08 08:20 PM.

'45 Ford PU
66 Valiant wagon, leaning tower of power.
79 Chevy C10 w/250
02 PT Cruiser Convertable